feat: implement streaming platform auction and bidding war engine

[Babin123456]

@SRV30

Related Issue

Closes #421

Summary

Implements a dynamic Streaming Platform Bidding War Engine where rival streaming platforms (NetCinema, StreamMax, CineStream, PrimePlay) place competitive bids for exclusive or post-theatrical streaming rights to studio films.

Changes Made

• Created StreamingAuction.js model storing auction states and bid logs.
• Created streamingAuctionEngine.js service simulating AI platform bidding logic.
• Created streamingAuctionController.js and streamingAuctionRoutes.js endpoints.
• Registered /api/streaming-auctions in app.js.
• Created streamingAuctionEngine.test.js validating descending bid sorting and minimum price enforcement.

Testing

• Ran node unit tests node --test tests/streamingAuctionEngine.test.js -> 100% pass rate.

Impact

Drives competitive licensing gameplay for post-theatrical film monetization.

Checklist

• Code follows project standards
• Tested locally
• No unrelated changes included
• Responsive design verified
• Accessibility considered

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